Your morning briefing, the business news you need in just 15 minutes.

On today's podcast:

(1) Donald Trump tightened his grip on the Republican presidential nomination after Iowa voters delivered him a victory in Monday's caucuses and moved him one step closer to returning to the White House.

(2) Houthi militants hit a US-owned commercial vessel with an anti-ship ballistic missile on Monday, underscoring warnings that the world's most important trade artery remains too risky for navigation.

(3) Easing pressure from food and energy bills will help drive UK inflation down to 1.5% in May, well under the Bank of England's target, according to ING.

(4) Elon Musk said he would rather build AI products outside of Tesla if he doesn't have 25% voting control, suggesting the billionaire may prefer a bigger stake in the world's most valuable electric vehicle maker.

(5) British pension funds, which sold so many bonds two years ago the Bank of England was forced to intervene, are gearing up to flood the market with billions of pounds of private assets.